regardless of what they tell you gates DOES NOT make a belt that fits the vanagon.
it needs to be a 9.5 mm width belt. Gates are 10mm.

there is more to it than the .5mm difference  the angle of the sides and the  depth are  different,
the  quick synopsis is that the 10mm  belt needs  to  grossly overtightened to  stop squealing
and this is results in  broken  alternator mounts and bad  waterpumps.

mike

>Hi..
>I don't see any replies yet to your question , so
>here is my suggestion ..
Get the size and Gates number off the existing belt.
go to your FLAPS with that # and get their next shorter belt.

better still, use german belts on a german vanagon.

or talk to whoever did the work and have them do it right this time,
since you say you 'had it done' ..by some shop or technician I figure
that means.